baber/WOPTO huggingface dataset:
Patent GB-1323364-A (GB)
Title: Electro-optical apparatus using an oscillatory diode
IPC: H03K3/02
Filed: 1970-09-17
Abstract: 1323364 Semi-conductor devices MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 17 Sept 1970 [20 Sept 1969 (2)] 44486/70 Heading H1K [Also in Divisions C4 G1 and H3] An electro-optical apparatus comprises an osilllatory diode 34, 35, Fig. 8; 10, Fig. 9, having an N-type semi-conductor body including a resistive iron doped layer 35 which diode is adapted to produce electrical oscillations when the voltage applied across it exceeds a threshold value and a photo conductive element 36, 41 having a light permeable electrode 37, 42 the photo conductive element being connected electrically to the diode and to a D.C. source 22, 43. The diode 34, 35; 10 produces oscillations at a frequency dependent on the light falling on the photo conductive element which varies its conductivity. The iron doped layer 35 provides a highly resistive layer 35 and the diode operates by avalanche multiplication and trapping effects. The diode has a v-N structure and may have a symmetrical v-N-v structure. The diode 10 may have electrodes (13, 14, Fig. 1, not shown) of tin alloy or a mixture of gold and germanium deposited on a wafer (11) of GaAs. The diode may be formed integral with photo conductive material 36 and has light permeable electrodes 37. The pulse generating diode may be biased by the D.C. source 22 below the oscillation terminating voltage or between the oscillation terminating voltage and the oscillation starting voltage so as to be triggered by light applied to the photo conductive element 36 to produce oscillation in the form of a pulse or a train of pulses at output 26 respectively. The diode may be biased to produce oscillations and by varying the incident light intensity the current through the diode 34, 35 is varied to alter the frequency of the pulse output to provide a modulated output. In an electro-optical converter (Fig. 9) the photo conductive element 41 and pulse generating diode 10 operate as element 36 and diode 34, 35 of Fig. 8. The output of diode 10 energizes electroluminescent material 39 so that light input at L1 produces light output at L2. By suitable selection of the electroluminescent material the wavelength of the light L2 may be different from the incident light L1. Three electro-optical converters of Fig. 9 may be arranged in cascade (Fig. 10, not shown). Specifications 1,275,545, 1,323,363 and 1,320,379 are referred to.
Patent GB-1360094-A (GB)
Title: Data processing system
IPC: G06F11/14
Filed: 1971-09-24
Abstract: 1360094 Error detection/correction INTERNATIONAL BUSINESS MACHINES CORP 24 Sept 1971 [2 Oct 1970] 44581/71 Heading G4A A data processing system includes a main processor HVS having a plurality of check circuits, and an error processor FVS operable to monitor the main processor check circuits and, in the event that it detects a signal indicating an error within the main processor, to obtain the source data involved from the main processor, compute the correct result from that data, transfer the correct result to the main processor and cause the latter to execute its next program step. The error processor may be a relatively simple serial machine connected to a disc file 3 from where it obtains an error routine and other data and to which it supplies data relating to the number and types of errors detected in the main processor (error logging). The error check circuits in the main processor may be parity circuits each having a unique address, the error processor being arranged to scan all the error check circuits in sequence in each cycle by applying their address in sequence to a decoder which enables a number of AND gates in sequence, the AND gates being connected via an OR gate to a bus which is connected to the error processor. A typical operating sequence is as follows. The main processor executes a microprogram step after which an error check is made. In the event of an error the error processor determines where the error occurred, initiates an error LOG routine, and accepts data from the main processor which will enable it to perform the erroneous step if necessary. The main processor is then instructed to repeat the step leading to the error. If this retry results in the same error the error processor performs the step and inserts the result into the appropriate unit in the main processor which is then instructed to perform the next microprogram step. When the error processor performs a step in this way it actuates the logging of the error on its associated disc file.
Patent GB-1363703-A (GB)
Title: Railway vehicles
IPC: B61F5/22
Filed: 1971-09-24
Abstract: 1363703 Railway vehicle undercarriages JAPANESE NATIONAL RAILWAYS 24 Sept 1971 [25 Sept 1970 (3)] 44676/71 Heading B7L A railway vehicle, Fig. 2a, comprises a substantially non-tiltable chassis including bolsterbeams 2, 2<SP>1</SP> on a longitudinally extending centre sill 1, and a vehicle body 8 mounted on the chassis for tilting movement about a longitudinal axis through point 9 located above the centre of gravity 80 of the body 8 so that when traversing a curve the vehicle body 8 swings about the axis through 9 under the action of centrifugal force in the manner of a pendulum. The transverse bolster beams 2, 2<SP>1</SP>, which are fixedly mounted on the centre sill 1 and connected to truck frame 4 via bolster springs 3, 3<SP>1</SP>, carry rolling bearings 7 which support the body 8. The rolling bearings 7 comprise rotatable members 73, 73<SP>1</SP>, 74, 741 between inclined plates attached to the chassis at 71, 711 and the body at 72, 72<SP>1</SP>, the opposed surfaces of these plates forming parts of circles whose common centre is at point 9. The railway vehicle such as coach 82 may be in tractive connection with a further railway vehicle 81 which is substantially unable to tilt about any longitudinal axis. Coach 82 and vehicle 81 are coupled by a linkage 70 which permits tilting of the body of coach 82 about a longitudinal axis above its centre of gravity. An end post 19 mounted on vehicle 81 includes a supporting curved surface at 71<SP>1</SP>, and a cooperating supported curved surface at 72<SP>1</SP> is mounted on coach 82 via fastening means F, F<SP>1</SP> and linkages LK, LK<SP>1</SP>, roller members 73<SP>1</SP> and 74<SP>1</SP> being disposed between the curved surfaces. Member 71<SP>1</SP>, which has the supported curved surface, may be pivoted about a vertical axis at a pin 77a<SP>1</SP>. The centre sill 1 may be provided with couplers 6 at its ends for connection to other vehicles.
Patent GB-1324106-A (GB)
Title: Separation of solids from suspension
IPC: B01D21/26
Filed: 1970-09-22
Abstract: 1324106 Centrifugal strainer DYNAMIT NOBEL AG 22 Sept 1970 [23 Sept 1969] 45178/70 Heading B1D A centrifugal strainer having a drum 2 with a rotary worm I which discharges separated solids upwards into annular chamber 11 is characterised by annular nozzles 6', 7' whereby the walls 3 and 14 defining chamber 11 are continuously supplied with washing liquid. The strainer is intended to separate acid-wet nitrocellulose, and the washing liquid inhibits its tendency to spontaneous decomposition in air. The housing has a hinged safety flap 4 which opens in the event of an explosion. Solids and filtrate are discharged at 9 and 12. Material enters the drum through conduits 5, 13, and the lower part of worm 1 is constructed as a pump wheel. Inlet 10 allows the main inlet conduit 13 to be washed with acid.
Patent GB-1446648-A (GB)
Title: Acrylonitrile polymer compositions and filaments formed therefrom
IPC: D01F6/18
Filed: 1973-10-01
Abstract: 1446648 Acrylonitrile polymer filaments E I DU PONT DE NEMOURS & CO 1 Oct 1973 [2 Oct 1972] 45819/73 Addition to 1414651 Heading B5B [Also in Division C3] Acrylonitrile polymer filaments having improved loop tenacity are prepared by: (1) forming an extrudable substantially single phase composition comprising; (a) a polymeric component comprising one or more acrylonitrile polymers, each containing at least 40 weight per cent units derived from acrylonitrile; (b) water substantially associated with the nitrile groups of the polymeric component, said water being present in at least an amount sufficient, on a 1 : 1 water molecule/nitrile group basis, to hydrate either 45% of all nitrile groups in the polymeric component or 80% of the coupled nitrile groups, whichever amount is larger, and in an amount which is not more than the amount combined as hydrate plus 7 weight per cent water based on the weight of polymeric component or, where the polymeric component contains hydrophilic comonomer units, in an amount which is not more than the amount combined as hydrate plus 10 weight per cent based on the weight of the polymeric component provided that the total amount of water does not exceed the amount necessary to hydrate all the nitrile groups in the polymeric component, said amount of water optionally being reduced by a weight amount up to that of component (c) employed; and (c) from 0.5% to 10% based on weight of polymeric component, of a compatible solvent for said polymeric component; and (2) extruding said substantially single phase composition at a temperature between 25 C. below and 10 C. above the temperature of hydration and under at least autogenous pressure. In examples the polymers used are an acrylonitrile / methyl acrylate / sodium styrene sulphonate copolymer in the wt. ratio 93À63/6/0À37 or an acrylonitrile/sodium styrene sulphonate copolymer in wt. ratio 96/4 and the compatible solvent is ethylene or propylene carbonate, γ- butyrolactone, tetramethylene sulphone, 2- pyrrolidone, dimethyl formamide, acetonitrile or sodium thiocyanate. The filaments are stated to have a novel "conjugated" sheath-core structure, that is one having a higher density at the filament surface then at its centre.
Patent GB-1421645-A (GB)
Title: Door body
IPC: E06B3/80
Filed: 1973-10-02
Abstract: 1421645 Laminates O C ECKEL 2 Oct 1973 [22 Feb 1973] 45941/73 Heading B5N [Also in Division B1] A door body comprises a core 10 of firm but resilient material, e.g. acrylic resinpolyvinyl chloride copolymer, a pad 14 disposed on opposite sides of the core made of compressible but resilient material, e.g. sponge rubber, polyurethane or neoprene, which is more resilient than the core material, a cover sheet 16 of compliant material, e.g. of rubber, disposed exteriorly of the pad on opposite sides of the core and providing a cover for the door body and a stile 20 forming the inner side portions of the door body, the core being secured to the stile and the pad terminating at the stile and the stile being provided with a slot 21 into which a portion of the core extends. The core may be # inch thick and the pad may be more than twice as thick as the core. The stile may be of wood, plastics material or aluminium and the core may be cemented and/or pinned to the stile. Cover sheet 16 which may be cemented to the stile and pad, may be covered with a metal cap 22, the stile, cover sheet and cap being retained by a bolt 24 and the cover sheet and cap being further retained by screws 28 and 30. A pivot post in the form of a pipe 32 fastened by pin 34 may extend from top to bottom of the door body. Alternatively the cover sheet may extend to the inner end of the door body and a hinge may be fastened to the inner end of the cap. The pad material on opposite sides of the core may be a single sheet which is reversed beyond the outer end of the core. The door body may be provided with a window.
Patent GB-1278634-A (GB)
Title: Colour television picture tube envelope window portion
IPC: H01J29/07
Filed: 1969-07-23
Abstract: 1278634 Colour television display tubes PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 23 July 1969 [26 July 1968 27 Feb 1969] 46248/71 Divided out of 1278633 Heading H1D A substantially rectangular window portion of the envelope of a colour TV display c.r.t., comprises a substantially flat window and a rim 2 substantially normal thereto, the rim having a thickened portion 4 with recess 3 at each corner. Each recess has a back 2<SP>1</SP> substantially perpendicular to the window and facing the opposite window, and opposite sides 5 which are also perpendicular to the window and lie between the corresponding corners and each adjacent corner. Other disclosures are as in the parent Specification.
Patent GB-1403393-A (GB)
Title: Inserters for intrauterine devices
IPC: A61F6/18
Filed: 1972-10-06
Abstract: 1403393 I.U.D. inserters A H ROBINS CO INC 6 Oct 1972 [7 Oct 1971] 46263/72 Heading A5R An inserter for an intrauterine device (I.U.D.) comprises a tube 10 and a plunger 12 mounted co-axially therein. As shown, the plunger 12 includes a handle portion 14 at one end, the tube 10 having an integral flange 24 at the corresponding end. The tube 10 has a pair of windows 28 formed opposite one another near to the front (cervix entry) end of the tube which allows an I.U.D. 20 to be accommodated in the tube 10 in its expanded form. The plunger 12 is hollow to accommodate a withdrawal cord 18 of the I.U.D. 20. The upper end of the plunger 12 is formed into a concave seat 48 and a thin neck (58) extends from this seat to a second saddle-shaped seat 16 which supports the upper edge of the I.U.D. Means to ensure correct depth positioning of the I.U.D. comprise equispaced hemispherical projections 38 formed on the outer surface, of the plunger 12 co-operating with a mating set of equispaced axially aligned recesses (40) on the inner surface of the tube 10. As tube 10 slides over the plunger 12 a tactile click will be felt by the operator as the projections 38 and recesses 40 click into each other. The I.U.D. is inserted using the following procedure (Figs 5-8 not shown); the plunger 12 is moved upwardly relative to the tube 10 so that the I.U.D-. is forced into an elongate form inside the tube while the tube 10 is inserted into the uterus against the fundus (36) of the uterine cavity (34). The tube 10 is then withdrawn while the plunger 12 is kept still thus exposing the I.U.D. which springs back to its undeformed shape after the tube has been removed. The tube and plunger are then withdrawn leaving the I.U.D. with its withdrawal string in the uterus. The inserter (Figures 22, 23 not shown) may have a single window 28 and have a solid plunger with a convex end (70). The inserters may also be used with alternative intrauterine devices (Figures 9-20, not shown).
Patent GB-1061490-A (GB)
Title: Improvements in mastic compositions
IPC: C08F8/32
Filed: 1964-11-13
Abstract: A mastic composition comprises at least one non-vulcanized elastomer, at least one phenolformaldehyde or aminoplast resin and at least one water-repellent resin having adhesive properties. The water-repellent resins are polydienic resins such as petroleum resins obtained by polymerization of mono- and di-olefins such as those obtained in steam-cracked petroleum distillates, using Friedel-Crafts catalysts. Specified elastomers are butyl rubber, halogenated butyl rubbers, chloroprene rubber, ethylenepropylene rubbers, polyisobutylenes, reticulated polyethylenes and elastomeric copolymers of one or more mono-olefins and endocyclic hydrocarbons containing a bridge formed by one or more methylene groups.  The proportions of the constituents of the mastic are preferably from 5 to 500 parts thermosetting resin and from 5 to 500 parts of water-repellent resin per 100 elastomer. There may also be present fillers, pigments, plasticizers and additionl adhesive agents while the intimate mixing of the ingredients may take place by polymerization in the presence of peroxide catalysts.
Patent GB-1167013-A (GB)
Title: Improvements in and relating to Air Conditioning Systems.
IPC: F24F13/04
Filed: 1966-10-18
Abstract: 1,167,013. Air conditioning control systems. BUENSOD-STACEY CORP. 18 Oct., 1966 [24 Oct., 1965], No. 46501/66. Heading F4V. [Also in Division G3] In an air conditioning system for a zone the rate of inflow of air is controlled by two similar valves 23, 24 the first valve 23 being poweroperated in response to the prevailing conditions in the zone and the second valve 24 being manually preset to define a minimum rate of flow of air. The valves 23, 24 pass a substantially constant rate of flow, being adapted to close as the air pressure upstream increases, and comprise flexible curtains 32, 33 covering perforated plates 25, the curtains being connected by links 30, 31, 34, 35 to a rod 27 biased to move upwardly under the influence of a spring 29. Valve 23 is controlled by a spring loaded piston 38B which moves a lever 40 restricting the movement of the rod 27 in response to changes in pressure in a compressed air line governed by a temperature responsive bleed valve 20. The regulator may be applied to a single duct system (Fig. 5) and be provided with a heating or cooling unit at the air outlet, or may be applied to a dual duct system as shown, a control damper 16<SP>1</SP> being provided to control the mixing of hot and cold air, the damper being controlled by a spring-loaded piston 18B in response to changes in pressure in the compressed air line. The springs 18A, 38A controlling the pistons 18B, 38B may be of differing strengths to provide a delay in action between the damper 16<SP>1</SP> and the poweroperated regulator valve 23.
Patent GB-1107927-A (GB)
Title: Guide roller for web fed rotary presses
Inventor: KREISIG HANS-JOACHIM
IPC: B65H23/16
Filed: 1966-10-18
Abstract: 1,107,927. Feeding webs. PLAMAG PLAUENER DRUCKMASCHINENWERK VEB. 18 Oct., 1966, No. 46555/66. Heading B6B. Each end bearing of a guide roller 3 is acted upon by a plurality of springs arranged axially upon a rod 15. A plate which is movable along the rod and can be clamped thereto by a lever 40, is positioned between successive springs. In this way any number of springs can be put out of action as desired. The coiled springs may be replaced by air springs, for example air chambers connected in groups to compressed air cylinders. Damping means in the form of a pneumatic or hydraulic. cylinder may be arranged at the end of each rod 15.
Patent GB-1518190-A (GB)
Title: Arrangement in a counter-balanced radiography unit stand
IPC: A61B6/00
Filed: 1975-11-11
Abstract: 1518190 Radiographic apparatus AO:S METALL & MEK VERKSTAD AB 11 Nov 1975 [25 Nov 1974] 46587/75 Heading H5R A radiographic apparatus having an arm 4 carrying an X-ray source 6 and a detector 5 and which can be moved vertically and rotationally is provided with respective electromagnetic brakes 7, 11 for the two movements, these brakes being released when elongated contacts 15, 16 over a substantial length of the arm are actuated. In Fig. 2 (not shown) the long contacts 15,16 are replaced by shorter contacts of similar total length and also further contacts which reapply the brakes if, for example, the arm 4 approaches a patient. Separate contacts may be provided for the two movements or single contacts may release the two brakes alternately. Limiting circuitry can be arranged to prevent undesirable combination of elevation and tilt.
Patent GB-1439528-A (GB)
Title: Typewriter system
IPC: B41J5/42
Filed: 1973-10-10
Abstract: 1439528 Printers; associative searching WANG LABORATORIES Inc 10 Oct 1973 [18 Oct 1972] 47330/73 Headings G4H and G4C A line-searching typewriter system can index to a desired line chosen solely by the alphanumeric symbols thereof, comprising control logic means responsive to a search signal for this purpose. As disclosed, a typewriter with keyboard is linked via control logic with a magnetic tape unit having two cassettes. The control logic includes a processor, an addressable MOS memory, and a read-only memory holding control words to control the system, the read-only memory being addressed as appropriate to keyboard operations performed and processing results. The MOS memory includes a tape buffer, a keyboard input buffer, and locations for tab stop settings, various counts of tabs, characters and lines, status signals and pointers (e.g. justify start position, adjust zone start position, right margin position) &c. Information entered on the keyboard can be stored on to either one of the tapes, transferred from one tape to the other with corrections, or typed out from tape. Information typed out may use the same right margin as at input, or have this margin adjusted within a selected range of spaces, or use right-justification by insertion of spaces. A sequence of characters entered on the keyboard can be searched for on a tape, using the MOS memory and comparison in the processor. During keyboard entry on to tape, corrections may be made within the current line by backspacing and "over-typing" or deleting the incorrect character, or the entire line can be deleted with a "line back" key. Corrections to previous lines can be made after accessing them using the search function or the "line back" key. During type-out ("play") from tape, corrections can be made using a skip key, a play button and paragraph, line, word and character selection keys. Lines entered uncentred can be typed out from tape in centred form (relative to margins entered which need not be the same as used in the original entry of the lines) by preceding the line on tape with a "centre" code. When a line is transferred from tape to the tape buffer for typeout, this code causes the line to be scanned (with counting) to determine the distance between the right end of the line and the desired right margin if the line were typed-out uncentred. Half this distance is used as a counter in spacing the type-carrier from the left margin. Tab stops and right margins (as implied) can be entered on to tape from the keyboard and used in typeout, e.g. automatic alignment of decimal points in type-out of numbers, when requested, is done by automatic insertion of backspace codes until the point is aligned with a tab stop. Underlined text is entered by backspacing and typing the underscore character, the codes stored being modified to indicate underlined characters.
Patent GB-1174081-A (GB)
Title: Improvements relating to Continuous Moulding or Castingof Composites
IPC: B22D11/00
Filed: 1966-10-24
Abstract: 1,174,081. Continuous composite casting; making tubes. TEXAS INSTRUMENTS Inc. 24 Oct., 1966 [8 Nov., 1965], No. 47495/66. Headings B3A and B3F. [Also in Division B5] To make a clad length, a continuous core, 25 of strip or cable (which may be woven), mesh or rod or wire (which may be multiple) moves, e.g. through a guide 9, into a melt which forms on the core a collar 43 and enters a water-cooled die 9 into which further melt 47 is urged by the melt pressure to add to the cladding which is smoothed by wiping of the (e.g. putty-like) surface layer in a straight bore portion 13 before solidification is completed in a flared portion 15. The melt 3, which may be A1, Cu, Zn or Pb, is in a receptacle 1 with a heater 8. The core 25 may be steel, W, (anodized) Al, or Mo (or carbon to be burnt out later to make an A1 or Cu tube) and may be the same material as the melt 3. A gate 27, in which the melt level may be lower, may surround the guide 19 to be raised or lowered to control melt- and heat-flow to the core 25 and thus control the thickness of the first cladding layer 43 which may also be controlled by direct heating of the core 25 by connecting a voltage supply 36 over a length of it. An electrical connection 39 may be made to the die 9 instead of the cladding 54 as shown. An inert atmosphere or vacuum may surround all or part of the apparatus. In a gateless embodiment, Fig. 6 (not shown), gas jets are directed at the guide inlet and die outlet. In another, Fig. 2 (not shown), the core (2) is drawn upwardly through a die 67 at the top of melt reservoir 63 and into which the melt 59 is forced by the head created by an upper, heated chamber 57.